//
// Created by victor on 18-7-6.
//

#include "apue.h"
#include <sys/wait.h>

int main() {
  char buf[MAXLINE];
  pid_t pid;
  int status;

  printf("%% ");
  while (fgets(buf, MAXLINE, stdin) != NULL) {
    if (buf[strlen(buf) - 1] == '\n')
      buf[strlen(buf) - 1] = 0;

    if ((pid = fork()) < 0) {
      err_sys("fork error");
    } else if (pid == 0) {
      execlp(buf, buf, (char *) 0);
      err_ret("couldn't execute: %s", buf);
      exit(127);
    }

    if ((pid = waitpid(pid, &status, 0)) < 0)
      err_sys("waitpid error");
    printf("%% ");
  }
  return 0;
}